Michael laufenburge



M. LAUFENBURGE.

I Shoe for Grain Separator. No. 78,597. Patented June 2,1868.

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MIOHAELIILAUF-ENBURGE, OF TWO ROCKS, CALIFORNIA.

Letters Patent No. 78,597, dated June 2, 1868;

IMPROVED SHOE FOB SEPARATORS.

TO ALL WHOM IT MAY CONCERN:

'Be itknown that I, MICHAEL LAUIENBURGE, of Tow Rock, county of Sonoma,State of California, have invented an Improved Shoe forThreshing-Machines; and I do hereby declare the following descriptionand accompanying drawings are suflicient to enable any'person skilled inthe art or science to which it mostnearly appert ains'to make and use mysaid invention or improvement without further invention or experiment,

\ My invention is intended to be used as a substitute for that part of athreshing-machine called the shoe, andconsists in placing the sieves inthe frame at an incline, where they are driven to and fro on ways, bymeansof rods attached to a horizontal eccentric driving-shaft. Beneaththe shaft is a horizontal screw, which conveysfthe tailings to elevatorsin a uniform manner.

To more fu'llyillus'trate and describe my invention, reference is had tothe accompanying drawings, and letters marked thereon, ofwhich- I Figure1 is a. side sectional elevation.

Figure 2is a plan. C p

A and B are the two sides of the'frame, in which the sieves or screens 0C operate, moving on ways I) D.

' The lower sieve is placed at an angle in the frame of about forty-fivedegrees, while the upper sieve, 0, is placed at a less angle, andinclines in an opposite direction, towards the driving-shaft. Thesesieves are connected, by curved rods, to a horizontal driving-shaft, E,which has three eccentrics, F F F, upon it. The upper sieve is connectedto the shaft by the rod G, and the lower sieve by the rods G G; theeccentrics F and F" being placed on the shaft in 'an opposite directionto that of F, so that when the lower screen is drawn in one direction,the upper one is moving in an opposite direction, and so on alternately.

' At one end of the machine, beneath the driving-shaft, is placed a halfoval trough, H, in which revolves a screw or anger, I, upon a shaft, 1,which is connected by a belt to the driving-shaft above.

The grain that does not 'pass through asit falls upon the top sieve, iscarried, by the shaking motion imparted by the'eccentrio-shaft, to theedge of the screens, and falls down into the oval trough, and is carriedout by the rotating screw, through an opening made in the end of thetrough into an elevator.

By this means a device for" shaking the sieves, without creating anyjars on the frame of the machine, is had, and the whole space betweenthe sides of the frame occupied, and thustthe capacity of the sieves forcleaning grain is increased, which is not the case when a to-and-frocombined with a side motion is imparted, as in ordinary shoes.

. The anger or screw conveys the tailings into the elevators in a veryuniform manner, and will not choke 'up'when damp grain is beingthreshetl, as is invariably the case when "small troughs are employed;also my machine is set over work in much less time than other machinesare, as it requires no staking and bracing.

Having thus described my invention, what I claim-as new, and desire tosecure by Letters Patent, is-

The combination of the screw I with the two inclined sieves C and G,vibrating in alternation, substantially in the manner and for thepurposes herein described.

In witness whereof, I have hereunto set my hand and seal.

MICHAEL LAUFENBURGE. [L. 5.]

Witnesses:

J. CHANDLER, E. COLE.

